29 June 2016 Page 8
It is the owner’s responsibility to ensure that all-periodical checks,
necessary adjustments and services are carried out.
STOP ENGINE - Never attempt any maintenance with the engine
running, remove spark plug lead and ensure the blades have
stopped rotating. Before servicing, disconnect spark plug wire and ground
it, disconnect battery at negative terminal, to prevent accidental starting.
1. OIL CHANGING & FILTER REPLACEMENT (ENGINE): See Engine
Maintenance/Instructions Sheet and carry out as per Engine Manufacturers
Recommendations.
SERVICING ENGINE AIR CLEANER FOAM PRE-CLEANER— See
engine owners manual for correct method to check and service engine air
cleaner foam pre-cleaner.
2. LUBRICATION OF MACHINE: Lubrication of machine must be carried
out every 25 hours of operation or once a month, whichever falls first. More
frequently when operated under adverse conditions.
A. OILING: A few drops of oil should be placed at the following
points: Steering linkages and pivot points, disengaging linkages and
height adjustment mechanism.
B CHAIN: Use only chain lube for lubrication of the steering chain.
3. TO CHECK BLADES: Stop engine. Remove spark plug lead. Side
Discharge Only, lift deflector and height adjustment control to highest
position. If necessary simply remove the blade bolt and nut using a
suitable spanner and replace worn parts.
4. ENGINE TO TRANSMISSION VEE BELT ADJUSTMENT: Loosen
the four engine mounting bolts. Move engine forward and adjust belt
firmly. Do not over tension. While maintaining tension on the
engine re-tighten bolts. Check belt tension at machine service period
(25hrs) or more frequently under heavy mowing conditions.
5. TRANSMISSION TO CUTTER VEE BELT ADJUSTMENT: Tension
is automatically adjusted by the belt tensioning springs. However, as
the belt stretches it will be necessary to lower the rear of the cutter
housing by loosening the rear lifting link nut, and visa versa when a
new belt is fitted.
6. CUTTER BRAKE ASSEMBLY ADJUSTMENT: With disengagement
handle in engaged position and mowing attachment in low cut, normal
clearance between cutter head pulley and cutter head brake pad is
approximately 3mm (1/8"). To adjust clearance, remove 'R' pin from
brake pull rod, adjust to give required clearance, replace brake pull
rod and 'R' pin. Check operation after adjustment.
7. DISENGAGING ADJUSTMENT: With the engine switched off,
engage the mowing attachment, then fully lower. Place a straight
edge vertically against the front of the front axle beam and in line with
the disengagement lever. Measure the distance between the straight
edge and the 8mm dia pin fitted with the small ‘R’ pin for the threaded
adjuster. Disengage mowing attachment and using the same method,
check the new distance. The difference should be 20 – 22mm. Engage
mowing attachment, remove ‘R’ pin and adjust threaded adjuster
accordingly. Install ‘R’ pin and re-check measurement. Due to normal
wear in transmission to cutter vee belt, the disengagement lever will
move lower and touch the foot rest. When this occurs the amount of
travel will need to be re-adjusted. If a new vee belt is installed the
above settings will apply.
Start engine and raise cutter to full height stop, cutter belt should not
engage. If this occurs switch off engine, engage cutter then screw
adjuster out 1 – 2 turns then retest.
8. TO ADJUST STEERING CHAIN: Adjust chain by loosening the four
bolts which hold the steering idler shaft mounting brackets (AM255) in
position, slide forward to tension chain then retighten bolts.
9. TO REMOVE MOWING ATTACHMENT: Fully lower mowing
attachment and engage, remove weight compensating spring,
remove 'R' pin from rear lifting link and disconnect, remove ‘R’
pin from cutter brake adjusting rod and disconnect, disengage
mowing attachment, remove belt, remove front pivot pin, Turn
steering wheel to the left to slide out mowing attachment. To
refit, reverse the above.
10. TYRE PRESSURE: 140 Kpa (20.P.S.I.) approximately front and
rear. Uneven pressure can give an uneven finish when mowing and
may cause damage to tyres and/or tubes.
11. BATTERY MAINTENANCE: Maintain electrolyte fluid level just
above plates by topping regularly with distilled water. When not in
use, a battery discharges by as much as 1% a day, more when the
climate is warm. To make up for this loss, a boosting charge should
be given once a month. Disconnect battery terminals to charge, then
allow to stand minimum 1/2hr before re-connecting (re-check
electrolyte level). If a battery is not used for a period of more than
three (3) months, the terminals should be disconnected and trickle
charged at two (2) amps for two (2) hours once every three (3)
months or before use.
12. SEAT ADJUSTMENT: Loosen four seat mounting bolts and slide
seat into desired position in slots and re-tighten bolts.
13. CLEANING AND POLISHING POLYETHYLENE BONNET AND
REAR MUDGUARD: To keep scratches on bonnet and mudguard to
minimum, do not rub or brush off with bare hands, use a soft cloth or
a light flow of compressed air. For dirt, wash with a steady stream of
water only (no detergent), then blow off excess water with air. To
polish remove excess dust or dirt. When surface is dry, spray on an
automotive type plastic preservative and leave on for 30 to 60
seconds. Using a dry soft cloth (i.e. cheesecloth) wipe off to bring up
lustre.
GENUINE SPARE PARTS: Always use Genuine Cox Factory Made
Spare Parts. Use of non-genuine COX spares will void your warranty.
SAFETY FIRST: The use of any mechanical appliance can cause
injury if incorrect procedures are used. Please ensure that all family
members of intended operators read this manual thoroughly.
TORQUE SETTINGS
1/4” UNC BOLT/NUT 10Nm (84lbf in)
5/16” UNC BOLT/NUT 20Nm (180lbf in)
3/8” UNC BOLT/NUT 36Nm (27lbf ft)
7/16” UNF BOLT 68Nm (50lbf ft)
6mm BOLT/NUT 9Nm (80lbf in)
20mm NUT 100Nm (74lbf ft)
5/8” UNF NUT 100Nm (74lbf ft)
8900 MAINTENANCE INSTRUCTIONS
We are proud that you have purchased a Cox product and urge you to follow these instructions
to obtain the maximum life for your machine. If in doubt check with your supplier.